A first-half Diego Costa goal fired Chelsea to a sixth successive win at Middlesbrough in the Premier League to move to the top the table.
The last time the Blues won six in a row was in the double win in 2010 and on this form, few would bet against Antonio Conte’s side when this season’s trophies are handed out.
A fortnight on this performance bore all the attacking hallmarks of the stunning Everton victory, albeit in flashes as it took a while to dampen down a buoyant Riverside crowd.
Chelsea have yet to concede since switching to three at the back and in truth this remarkable record didn’t look like being broken in a professional display in the North East.
Here are some talking points to stem from this latest victory.
Chelsea can do it on a wet evening on Teesside
Middlesbrough away is a fixture that can easily wrong-foot a continental Premier League boss.
Cast your mind back to Jose Mourinho's second title winning season: and the calamitous 3-0 slump here.
Chelsea took a while to work out their foes: there was a touch of international-break-itis from Eden Hazard, in particular, to start.
But they unpicked Aitor Karaka's lock, and held that superiority – in the face of a spirited Boro performance.
A fitting fixture, in terms of the character required and demonstrated, with which to go top of the league.
Conte knows what he likes, and he won't be changing it if it works
For the first time in Premier League history, Chelsea put out an unchanged starting XI for the fifth consecutive game.
And why would he change that: with the form in this side, every man has earned his place on the team sheet.
That will surely continue, until one of two things happens: something goes wrong, results wise; or the decision is taken out of his hands, by either injury, or a disciplinary sanction.
And that is the worry: this XI looks finely drilled, and on top of their game.
But is there the strength in depth – particularly for Hazard and Diego Costa, who were injury worried following this fortnight break.
The time will come, sooner rather than later one suspects: and it will be a time for oters to show what they are made of.
Diegoooooaaaal is back in the building
Since his signing, Chelsea's fortunes have varied so much depending on the performance of their target man.
After scoring his 10th league goal in 12 matches, it is pretty safe to say that we are seeing the man at his very best.
Seven goals in his last seven away games is another stat that shows the commitment of Costa.
And, add to that, a new found model temperament – he's been rested on four yellows for the season for seven games now - and we can be sure we are seeing one of the Premier League's very best here.
Today, at The Riverside, he was peerless.
Conte is living, breathing every kick
We saw it in the Euros with Italy, and we've seen it with Chelsea all season – Antonio Conte lives each game minute by minute.
The addition we saw here at The Riverside, was his leading the team over to the away end on full time, and punching the air emphatically towards the fans.
This man is fast moving into cult hero status at Chelsea: his passion is adored, while the tactical impact he has had on the team is eve more appreciated.
Conte is starting to look like he belongs here.
The phoney war is over – let real hostilities commence
Chelsea have looked like a team renewed since the change in formation.
They have destroyed some good sides, but are yet to do that against anyone truly great.
It is arguable whether there are any truly great sides in this Premier League, but Tottenham and Manchester City – though flawed in many ways – are possibly about as close to greatness as the division presently contains.
And they are the next two sides Chelsea will face.
When the fixture list was released in the summer, that immediately looked like a moment of truth.
Time for Chelsea to deliver...